中小学教育资源及组卷应用平台
英语虚拟语气练习
1.__________the
AI
technology
machines
__________earlier,
the
production
efficiency
would
have
been
promoted.
A.?Were;
invented???????B.?Had;
been
invented???????21教育网
C.?Had;
invented???????
D.?Have;
been
invented
2.—
Jenny
looks
hot
and
dry.
—
So______
you
if
you
had
a
high
fever.
A.?will?????????????????????????????????????B.?do?????????????????????????????????????
C.?are?????????????????????????????????????D.?would21·cn·jy·com
3.President
Xi
(?http:?/??/?www.21cnjy.com?)Jinping
demanded
the
environmental
problems
_______paid
special
attention
to.
www.21-cn-jy.com
A.?referred
to
be???????????????B.?referred
to
being???????????????
C.?refer
to
being???????????????D.?refer
to
be
4.The
order
came
that
(?http:?/??/?www.21cnjy.com?)
the
medical
supplies
??????to
Beijing
for
the
SARS
soon.
2·1·c·n·j·y
A.?would
be
sent????????????????????B.?should
send????????????????????
C.?be
sent????????????????????
D.?must
be
sent21·世纪
教育网
5.How
I
wish
I
??????to
repair
the
watch!
I
only
made
it
worse.
A.?had
tried????????????????????????B.?hadn't
tried????????????????????????
C.?have
tried????????????????????????D.?didn't
trywww-2-1-cnjy-com
6.I
did
not
see
your
s
(?http:?/??/?www.21cnjy.com?)ister
at
the
meeting.
If
she
??????,
she
would
have
met
my
brother
2-1-c-n-j-y
A.?has
come???????????????????????????B.?did
come???????????????????????????
C.?come???????????????????????????
D.?had
come
7.Without
electricity,
human
life??????
quite
difficult
today.
A.?would
be???????????????????????????
B.?will
be???????????????????????????
C.?would
have
been???????????????????????????D.?is【来源：21cnj
y.co
m】
8.You
________
that
late
last
night
.You
have
three
days
to
finish
the
work.
21cnjy.com
A.?didn't
need
to
work???????B.?neendn't
have
worked???????
C.?need
to
work???????
D.?need
working
9.My
brother
________
to
college
last
year,
but
unfortunately
he
wasn't
able
to
take
the
examination
because
he
was
seriously
ill.
A.?needn't
have
gone??????B.?shouldn't
have
gone??????【版权所有：21教育】
C.?could
have
gone??????
D.?must
have
gone
10.It
seems
stra
(?http:?/??/?www.21cnjy.com?)nge
that
the
old
man
_____
have
returned
to
college
to
finish
the
degree
he
left
undone
four
decades
ago.
A.?would????????????????????????????????B.?should????????????????????????????????
C.?could????????????????????????????????D.?might
11.—Thank
you
(?http:?/??/?www.21cnjy.com?)
for
your
assistance,
without
___I
might
have
been
in
danger.
【来源：21·世纪·教育·网】
—That's
all
right,
anyone
in
my
place
________
the
same
thing.
A.?that;
will
do?????????
B.?it,
would?????????【出处：21教育名师】
C.?which;
can
have
done?????????D.?which;
would
have
done
12.I
wish
that
I
______
a
bird.
A.?am??????????????????????????????????????B.?was??????????????????????????????????????
C.?be??????????????????????????????????????D.?were21教育名师原创作品
13.But
for
my
teache
(?http:?/??/?www.21cnjy.com?)r's
help
when
I
was
in
the
senior
high
school,
I
____
in
Fudan
University
now.
21
cnjy
com
A.?would
not
have
st
(?http:?/??/?www.21cnjy.com?)udied??????????????????????????????B.?would
not
be
studying
C.?hadn't
studied?????????????????????????????????????????????D.?was
not
studying
14.Fortunately
I
_______
a
seat
belt,
otherwise
I
would
have
been
injured.
A.?am
wearing????????????????
B.?was
wearing????????????????
C.?have
been
wearing????????????????D.?have
worn
15.________
the
m
(?http:?/??/?www.21cnjy.com?)orning
train,
he
would
not
have
been
late
for
the
meeting.
A.?Did
he
catch?????????????
B.?Should
he
catch?????????????
C.?Has
he
caught?????????????D.?Had
he
caught
16.It
might
have
saved
me
some
trouble
______
the
schedule.
A.?did
I
know????????????????????B.?have
I
known????????????????????
C.?do
I
know????????????????????D.?had
I
known
17.It
is
compulsory
that
every
motorcyclist
______
a
helmet.
A.?shall
wear??????????????????????B.?should
wear??????????????????????
C.?must
wear??????????????????????D.?need
wear
18.I'm
sorry
to
say
(?http:?/??/?www.21cnjy.com?)
I
failed
to
meet
the
deadline.
With
better
equipment,
I
__________
the
task
on
schedule.
A.?might
have
accomplished???????????????????????????????B.?would
accomplish
C.?must
have
accomplished?????????????????????????????????D.?could
accomplish
19.Emphasis
is
laid
on
(?http:?/??/?www.21cnjy.com?)
the
necessity
that
all
the
goals
to
be
attained
_________
into
account
before
starting
a
new
project..
A.?be
taken??????????????????
B.?should
take??????????????????
C.?would
be
taken??????????????????D.?must
be
taken21
cnjy
com
20.The
teacher
commanded
that
the
classroom
should
_____at
once
A.?clean??????????????????????????
B.?cleaned??????????????????????????
C.?be
cleaned??????????????????????????D.?be
cleaning21世纪教育网版权所有
21世纪教育网
www.21cnjy.com
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21世纪教育网(www.21cnjy.com)中小学教育资源及组卷应用平台
英语虚拟语气练习
1.It's
reques
(?http:?/??/?www.21cnjy.com?)ted
that
the
football
competition
_____
put
off
___
the
terrible
weather.
21世纪教育网版权所有
A.?be;
because
of??????????????B.?would
be;
due
to??????????????
C.?be;
thanks
to??????????????
D.?was;
owing
to
【答案】
A
【解析】
句意：由于天气不好，足球比赛被推
(?http:?/??/?www.21cnjy.com?)迟了。require要求，从句用should
+
v原形的虚拟语气，should可以省略。A.
be;
because
of“因为”；B.
would
be;
due
to
“由于”；C.
be;
thanks
to
“多亏了”；D.
was;
owing
to“由于”。because
of“因为”表示一种原因；thanks
to“多亏了”表示感激。故选A。
【总结】考查虚拟语气以及介词短语辨析，本题涉及涉及虚拟语气在主语从句中的应用，区分because
of；due
to
；thanks
to
和owing
to的应用。
21·cn·jy·com
2.He
takes
a
tor
(?http:?/??/?www.21cnjy.com?)ch
_______
it
gets
dark
before
he
returns．
A.?so
that??????????????????????????????????B.?unless??????????????????????????????????
C.?in
case??????????????????????????????????D.?if
【答案】
C
【解析】
句意：他带了手电筒，
(?http:?/??/?www.21cnjy.com?)以备天黑以后回家之用。A、so
that“目的是，为的是”；B、unless“如果不”；C、in
case“以防，以备”；D、if“如果”。选C。www.21-cn-jy.com
考查状语从句，本题涉及in
case引导的目的状语从句的应用。
3.Be
quiet
_______
you
wake
the
baby.
A.?in
case???????????????????????????B.?now
that???????????????????????????
C.?so
that???????????????????????????D.?in
order
to21·世纪
教育网
【答案】
A
【解析】
句意：轻点儿，别吵醒
(?http:?/??/?www.21cnjy.com?)婴儿。A、in
case“以免”；B、now
that“既然”；C、so
that“目的是，为的是”；D、in
order
to“为的是”，后面接动词原形，故选A。【来源：21cnj
y.co
m】
考查状语从句，本题涉及in
case因大气的目的状语从句的应用。
4.—Sorry,
sir.
I
can't
answer
this
question.
—Well,
you
are
supposed______
this
part
of
history.2-1-c-n-j-y
A.?reading????????????????????
B.?to
be
reading?????????????????????
C.?to
have
read?????????????????????D.?having
read【版权所有：21教育】
【答案】
C
【解析】
句意：——对不起
(?http:?/??/?www.21cnjy.com?)，老师，我不会回答这个问题。——你应该读过历史的这个部分。be
supposed
to
have
done
表示"本来应该已做了某事，但可能没做"。是一种虚拟语气，选C。
考查虚拟语气，掌握be
supposed
to
have
done。
5.If
you
?????my
advi
(?http:?/??/?www.21cnjy.com?)ce,
you
?????how
to
solve
the
problem
now.
A.?had
taken;
would
have
known????????????????????????B.?had
taken;
would
know
C.?took;
would
have
known?????????????????????????????????D.?took;
would
know
【答案】
B
【解析】
句意：如果你当时听了
(?http:?/??/?www.21cnjy.com?)我的劝告，你现在就知道如何解决这个问题了。此处是虚拟语气，if从句表示与过去的事实相反，用过去完成时。主句表示与现在的事实相反，用would/should/could/might+动词原形。故选B。21教育网
考查虚拟语气，本题涉及与过去的事实相反的应用。
6.He
demanded
that
the
meeting
______
put
off.
A.?not
be?????????????????????????
B.?should
not?????????????????????????
C.?was
not?????????????????????????D.?would
not
be【出处：21教育名师】
【答案】
A
【解析】
句意：他要求
(?http:?/??/?www.21cnjy.com?)会议不要推迟。及物动词suggest
/
demand
/
insist
/
order
/
ask
(做”要求“解时)
/
require
---后面的宾语从句，要用虚拟语气，谓语用should
+动词原形，should
可以省略，本题正是省略了should。且此处the
meeting
和put
off之间是被动关系，故选A。
考查虚拟语气，本题涉及宾语从句中的虚拟语气。
7.We
require
that
he
______
all
night.
21
cnjy
com
A.?shall
work????????????????????????????B.?has
to
work????????????????????????????
C.?work????????????????????????????
D.?works
【答案】
C
【解析】
句意：我们要求他通宵工作
(?http:?/??/?www.21cnjy.com?)。固定句式：require后面的宾语从句的谓语动词用should+动词原形，should可以省略，故选C。
考查虚拟语气，本题涉及宾语从句中的虚拟语气。
8.I
________
abl
(?http:?/??/?www.21cnjy.com?)e
to
catch
the
first
flight
home,
but
my
watch
betrayed
me.
21教育名师原创作品
A.?were???????????????????????
B.?had
been???????????????????????21
cnjy
com
C.?would
be???????????????????????D.?would
have
been
【答案】
D
【解析】
句意：我本来能够在黎明的时候回家的，但是我的钟不准。事实上并没有在黎明回家，用虚拟语气，故选D。
考查虚拟语气，本题涉及对过去事实的
假设。
9.Had
I
known
ab
(?http:?/??/?www.21cnjy.com?)out
this
computer
program,
a
huge
amount
of
time
and
energy????
.
A.?would
have
been
saved???????????B.?had
been
saved???????????
C.?will
be
saved???????????
D.?was
saved
【答案】
A
【解析】
句意：如果我早
(?http:?/??/?www.21cnjy.com?)知道这个电脑程序,
就可以节省大量的时间和精力了。根据句子的倒装特征判断此处是省略了if的虚拟语气,
原形是：If
I
had
known
about
this
computer
program,
a
huge
amount
of
time
and
energy
.故选A。
考查虚拟语气，本题涉及对过去事实的虚拟。
10.I
was
about
(?http:?/??/?www.21cnjy.com?)to
accept
her
proposal
_____
she
suggested
we
first
_____
to
the
West
Lake
and
walk
along
the
Broken
Bridge.
A.?that,
went
(?http:?/??/?www.21cnjy.com?)???????????????????????B.?what,
go???????????????????????
C.?when,
go???????????????????????D.?whether,
went
【答案】
C
【解析】
句意：我正要接受她的建议，在这时
(?http:?/??/?www.21cnjy.com?)她建议我们先去西湖沿着断桥步行。第一空考查的观点句式be
about
to
do
sth
when….固定句型，“正要做某事在这时….”其中when是一个并列连词，句中表示发生了意料之外的事情；第二空是虚拟语气，动词suggest表示建议的时候，后面的宾语从句要使用“should+动词原形”的虚拟语气，should可以省略。故选C。
考查固定句式和虚拟语气，本题涉及固定句型be
about
to
do
sth
when和虚拟语气在宾语从句的应用。
11.The
officer
comm
(?http:?/??/?www.21cnjy.com?)anded
that
everyone
passing
by
______
that
day.
A.?search???????????????B.?would
be
searched???????????????
C.?be
searched???????????????D.?must
be
searched
【答案】
C
【解析】
句意：军官命令那天经过的人都被搜
(?http:?/??/?www.21cnjy.com?)查。command后面的宾语从句用虚拟语气，（should）+动词原形，此处everyone和search之间是被动关系，故答案为C。
考查虚拟语气，本题涉及虚拟语气在宾语从句中的应用。
12.It's
strange
(?http:?/??/?www.21cnjy.com?)that
he
_______
have
taken
the
books
without
the
owner's
permission.
A.?would??????????????????????????????????B.?should??????????????????????????????????
C.?could??????????????????????????????????D.?might
【答案】
B
【解析】
句意：真奇怪，他
(?http:?/??/?www.21cnjy.com?)竟然没有经得主人的允许就把那些书拿走了。此处是主语从句中使用虚拟语气，should
have+过去分词
表示意外的语气，意为“竟然”，故答案为B。
考查名词性从句中使用虚拟语气，掌握should表示“竟然”的用法。
13.There
is
a
go
(?http:?/??/?www.21cnjy.com?)od
social
life
in
the
village,
and
I
wish
I
_______
a
second
chance
to
become
more
involved.
A.?had??????????????????????????
B.?will
have??????????????????????????
C.?would
have
had??????????????????????????D.?have
had
【答案】
A
【解析】
句意：这个村子里有很好
(?http:?/??/?www.21cnjy.com?)的社交生活，我希望再有机会更好地融入到这里。wish后跟宾语从句要用虚拟语气，其规则是：与现在事实相反，用一般过去时，be动词用were；与过去事实相反，用过去完成时；与将来事实相反，用would/could+动词原形。根据前半句的is可知表示与现在事实相反，所以用过去式，故答案为A。
考查wish后宾语从句用虚拟语气的用法，掌握基本规则，根据语境套用即可。
14.They
might
(?http:?/??/?www.21cnjy.com?)
have
found
a
better
hotel
if
they
_________
a
few
more
kilometers.
A.?drove???????????????????????
B.?would
drive???????????????????????
C.?were
to
drive???????????????????????D.?had
driven
【答案】
D
【解析】
句意：要是他们
(?http:?/??/?www.21cnjy.com?)开车多走几公里的话，他们也许会找到一家更好的旅馆。本句是虚拟语气，表示与过去事实相反的假设，主句用“might
have+过去分词”，从句要用过去完成时，故答案为D。
考查虚拟语气在if条件句中的用法，牢记if条件句中虚拟语气的基本格式即可做出判断。
15.If
we
___________the
flight
yesterday,
we
would
be
enjoying
our
holiday
on
the
beach.
A.?had
caught??????????????????????
B.?caught??????????????????????
C.?have
caught??????????????????????D.?would
catch
【答案】
A
【解析】
句意：如果我们昨天
(?http:?/??/?www.21cnjy.com?)赶上飞机的话，现在我们正在海滩享受我们的假日了。根据时间状语yesterday可知，从句表示与过去事实相反，故用had
+
v-ed。故选A。
考查虚拟语气，本题涉及表示与过去事实相反的条件句的虚拟。
16.__________
let
hi
(?http:?/??/?www.21cnjy.com?)m
have
a
rest,
we
suggest
he______________
off
the
meeting
until
next
Monday.
A.?In
order
to;
put?????????B.?In
order
to;
putting?
???????????
C.?So
as
to;
put?????????
D.?So
as
to;
putting
【答案】
A
【解析】
句意：为了让他
(?http:?/??/?www.21cnjy.com?)休息一下，我们建议他把会议推迟到下星期一。in
order
to和so
as
to“为的是,为了”，它们的英语功能也是一样的,都可以用来引导目的状语.它们的不同之处就在于so
as
to
不能用于句子的开头,在句子开头只能用in
order
to；
suggest后面的宾语从句用虚拟语气，谓语动词用“（should）动词原形”，故选A。
考查固定短语和虚拟语气，本题涉及虚拟语气在宾语从句中的应用，以及in
order
to和so
as
to的区别。21cnjy.com
17.Take
the
umbrella
with
you
___________
it
rains.
A.?as
long
as??????????????????????????B.?even
though??????????????????????????
C.?in
case??????????????????????????
D.?so
that
【答案】
C
【解析】
考查连词。句意：带
(?http:?/??/?www.21cnjy.com?)上雨伞，以防下雨。as
long
as?只要；even
though
虽然，即使；in
case
万一；假使；so
that
以便；所以。根据句意，故答案选C。www-2-1-cnjy-com
考查连词之间的区别。
18.If
_________,
Kate
will
certainly
go
to
Jane's
birthday
party
tonight.
A.?invites??????????????????????????????B.?invited??????????????????????????????
C.?to
invite??????????????????????????????D.?inviting2·1·c·n·j·y
【答案】
B
【解析】
考查省略句。句意：
(?http:?/??/?www.21cnjy.com?)如果被邀请，凯特今晚肯定会去参加简的生日聚会。当状语从句的主语与主句的主语一致时，同时含有be动词，这是可以省略状语从句的主语和系动词be。句子还原为：If
Kate
is
invited，故答案选B。
考查状语从句的省略。
19.—I
wonder
if
Professor
Watson
________
the
party
tonight.
—I
don't
know，but
I'll
let
you
know
if
he
________.
A.?will
attend；will
come?????????????????????????????????????B.?will
attend；comes
C.?attends；will
come??????????????????????????????????????????D.?attends；comes
【答案】
B
【解析】
句意：——想知道Watson
(?http:?/??/?www.21cnjy.com?)教授今晚是否会参加这个聚会。——我不知道，但如果他来了我会告诉你的。第一个if引导的是宾语从句，根据句意宾语从句的谓语动词用一般将来时；第二个if
引导的是条件状语从句，遵循“主将从现”原则‘
，故选B。
考查名词性从句和状语从句，本题涉及if引导的宾语从句和条件状语从句的应用。【来源：21·世纪·教育·网】
20.The
teacher
mad
(?http:?/??/?www.21cnjy.com?)e
a
request
that
all
the
homework
________
before
class.
A.?should
hand
in???????????B.?must
be
handed
in???????????
C.?be
handed
in???????????
D.?were
handed
in
【答案】
C
【解析】
句意：老师要求在上课前
(?http:?/??/?www.21cnjy.com?)把所有的作业交出来。request后名词性从句中的谓语动词要用“should＋动词原形”形式，should可以省略。hand
in与homework之间为被动关系，故选C。
考查虚拟语气，本题涉及虚拟语气在宾语从句中的应用。
21世纪教育网
www.21cnjy.com
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2
页）
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21世纪教育网(www.21cnjy.com)中小学教育资源及组卷应用平台
英语虚拟语气练习
1.It's
reque
(?http:?/??/?www.21cnjy.com?)sted
that
the
football
competition
_____
put
off
___
the
terrible
weather.
21教育网
A.?be;
because
of??????????????B.?would
be;
due
to??????????????
C.?be;
thanks
to??????????????
D.?was;
owing
to
2.He
takes
a
torch
(?http:?/??/?www.21cnjy.com?)_______
it
gets
dark
before
he
returns．
A.?so
that??????????????????????????????????B.?unless??????????????????????????????????
C.?in
case??????????????????????????????????D.?if
3.Be
quiet
_______
you
wake
the
baby.
A.?in
case???????????????????????????B.?now
that???????????????????????????
C.?so
that???????????????????????????D.?in
order
to21cnjy.com
4.—Sorry,
sir.
I
can't
answer
this
question.
—Well,
you
are
supposed______
this
part
of
history.2·1·c·n·j·y
A.?reading??
(?http:?/??/?www.21cnjy.com?)??????????????????
B.?to
be
reading?????????????????????
C.?to
have
read?????????????????????D.?having
read21·世纪
教育网
5.If
you
?????my
advice,
you
?????how
to
solve
the
problem
now.
A.?had
taken;
would
have
known????????????????????????B.?had
taken;
would
know
C.?took;
would
have
known?????????????????????????????????D.?took;
would
know
6.He
demanded
that
the
meeting
______
put
off.
A.?not
be?????????????????????????
B.?should
not?????????????????????????
C.?was
not?????????????????????????D.?would
not
be【出处：21教育名师】
7.We
require
that
he
______
all
night.
【版权所有：21教育】
A.?shall
work????????????????????????????B.?has
to
work????????????????????????????
C.?work????????????????????????????
D.?works
8.I
________
able
to
(?http:?/??/?www.21cnjy.com?)catch
the
first
flight
home,
but
my
watch
betrayed
me.
21教育名师原创作品
A.?were???????????????????????
B.?had
been???????????????????????2-1-c-n-j-y
C.?would
be???????????????????????D.?would
have
been
9.Had
I
known
ab
(?http:?/??/?www.21cnjy.com?)out
this
computer
program,
a
huge
amount
of
time
and
energy????
.
A.?would
have
been
saved???????????B.?had
been
saved???????????
C.?will
be
saved???????????
D.?was
saved
10.I
was
about
to
acce
(?http:?/??/?www.21cnjy.com?)pt
her
proposal
_____
she
suggested
we
first
_____
to
the
West
Lake
and
walk
along
the
Broken
Bridge.
A.?that,
went???????????????????????B.?what,
go???????????????????????www.21-cn-jy.com
C.?when,
go???????????????????????D.?whether,
went21
cnjy
com
when和虚拟语气在宾语从句的应用。
11.The
officer
(?http:?/??/?www.21cnjy.com?)commanded
that
everyone
passing
by
______
that
day.
A.?search???????????????B.?would
be
searched???????????????21世纪教育网版权所有
C.?be
searched???????????????D.?must
be
searched
12.It's
strange
tha
(?http:?/??/?www.21cnjy.com?)t
he
_______
have
taken
the
books
without
the
owner's
permission.
21·cn·jy·com
A.?would??????????????????????????????????B.?should??????????????????????????????????
C.?could??????????????????????????????????D.?might【来源：21cnj
y.co
m】
13.There
is
a
(?http:?/??/?www.21cnjy.com?)
good
social
life
in
the
village,
and
I
wish
I
_______
a
second
chance
to
become
more
involved.
A.?had??????????????????????????
B.?will
have??????????????????????????
C.?would
have
had??????????????????????????D.?have
had
14.They
might
ha
(?http:?/??/?www.21cnjy.com?)ve
found
a
better
hotel
if
they
_________
a
few
more
kilometers.
A.?drove???????????????????????
B.?would
drive???????????????????????
C.?were
to
drive???????????????????????D.?had
driven
15.If
we
___________the
flight
yesterday,
we
would
be
enjoying
our
holiday
on
the
beach.
21
cnjy
com
A.?had
caught??????????????????????
B.?caught??????????????????????
C.?have
caught??????????????????????D.?would
catch
16.__________
let
h
(?http:?/??/?www.21cnjy.com?)im
have
a
rest,
we
suggest
he______________
off
the
meeting
until
next
Monday.
A.?In
order
to;
put?????????B.?In
order
to;
putting?
???????????
C.?So
as
to;
put?????????
D.?So
as
to;
putting
17.Take
the
umbrella
with
you
___________
it
rains.
A.?as
long
as?
(?http:?/??/?www.21cnjy.com?)?????????????????????????B.?even
though??????????????????????????
C.?in
case??????????????????????????
D.?so
that
18.If
_________,
Kate
will
certainly
go
to
Jane's
birthday
party
tonight.
A.?invites??????????????????????????????B.?invited??????????????????????????????
C.?to
invite??????????????????????????????D.?inviting【来源：21·世纪·教育·网】
19.—I
wonder
if
Professor
Watson
________
the
party
tonight.
—I
don't
know，but
I'll
let
you
know
if
he
________.
A.?will
attend；will
come?????????????????????????????????????B.?will
attend；comes
C.?attends；will
come??????????????????????????????????????????D.?attends；comes
20.The
teach
(?http:?/??/?www.21cnjy.com?)er
made
a
request
that
all
the
homework
________
before
class.
A.?should
hand
in???????????B.?must
be
handed
in???????????www-2-1-cnjy-com
C.?be
handed
in???????????
D.?were
handed
in
21世纪教育网
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精品试卷·第
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2
页）
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21世纪教育网(www.21cnjy.com)中小学教育资源及组卷应用平台
英语虚拟语气练习
1.__________the
AI
technology
machines
__________earlier,
the
production
efficiency
would
have
been
promoted.
A.?Were;
invented???????B.?Had;
been
invented???????21世纪教育网版权所有
C.?Had;
invented???????
D.?Have;
been
invented
【答案】
B
【解析】
句意：如果人工智能机
(?http:?/??/?www.21cnjy.com?)器早点发明，生产效率就会提高。此处是if引导的非真实条件句，与过去事实相反，从句用过去完成时态，当if省略时，用部分倒装，将助动词had提到主语的前面。故选B。
【总结】考查倒装句，本题涉及省略if的虚拟语气。
2.—
Jenny
looks
hot
and
dry.
—
So______
you
if
you
had
a
high
fever.
A.?will?????????????????????????????????????B.?do?????????????????????????????????????
C.?are?????????????????????????????????????D.?wouldwww.21-cn-jy.com
【答案】
D
【解析】
句意：——Jenny
(?http:?/??/?www.21cnjy.com?)看起来又热又干。——如果你发高烧的话，你也是这个样子。根据had判断此处表示与现在事实相反的假设，应该用would，故选D。
【总结】考查虚拟语气，本题涉及与现在事实相反的假设。
3.President
Xi
(?http:?/??/?www.21cnjy.com?)Jinping
demanded
the
environmental
problems
_______paid
special
attention
to.
21·世纪
教育网
A.?referred
to
be???????????????B.?referred
to
being???????????????
C.?refer
to
being???????????????D.?refer
to
be
【答案】
A
【解析】
句意：习近平主
(?http:?/??/?www.21cnjy.com?)席要求特别关注被提到的环境问题。此处problems和refer之间是一种被动关系，是过去分词作后置定语；动词demand后面的宾语从句用should+动词原形，should可以省略，且problems和pay之间是一种被动关系。故选A。
【总结】考查非谓语的车虚拟语气，本题涉及过去分词作后置定语和demand后的宾语从句。www-2-1-cnjy-com
4.The
order
ca
(?http:?/??/?www.21cnjy.com?)me
that
the
medical
supplies
??????to
Beijing
for
the
SARS
soon.
2-1-c-n-j-y
A.?would
be
sent????????????????????B.?should
send????????????????????
C.?be
sent????????????????????
D.?must
be
sent【来源：21cnj
y.co
m】
【答案】
C
【解析】
句意：命令下达后，医疗用品很快
(?http:?/??/?www.21cnjy.com?)被送到北京，以应对非典。表示建议.劝告.命令等名词常见的有
advice?
demand
desire?
order?
提议
requirement
request?
suggestion
等等，他们后接同位语从句时，同位语从句的谓语动词要用“（should
）+
动词原形
结构。本句中的主语
the
medical
supplies与谓语send为被动，所以用被动语态。故选C。
【总结】考查虚拟语气，本题涉及虚拟语气在同位语从句中的应用。
5.How
I
wish
I
??????to
repair
the
watch!
I
only
made
it
worse.
A.?had
tried????????????????????????B.?hadn't
tried????????????????????????
C.?have
tried????????????????????????D.?didn't
try【版权所有：21教育】
【答案】
B
【解析】
句意：我多么希望我
(?http:?/??/?www.21cnjy.com?)没有去修理那块表！我只让事情变得更糟了。动词wish后接宾语从句时，从句谓语要用虚拟语气若表示与过去相反的愿望，从句谓语用过去完成时。根据句意以及“made”可知，选B。
【总结】考查虚拟语气，本题涉及wish的应用和与过去相反的愿望。
6.I
did
not
see
your
(?http:?/??/?www.21cnjy.com?)
sister
at
the
meeting.
If
she
??????,
she
would
have
met
my
brother
【来源：21·世纪·教育·网】
A.?has
come???????????????????????????B.?did
come???????????????????????????
C.?come???????????????????????????
D.?had
come
【答案】
D
【解析】
句意：我没有在会上见到你
(?http:?/??/?www.21cnjy.com?)妹妹。如果她来了，她会遇见我哥哥的。if
引导的虚拟条件句，与过去事实相反的假设。主句谓语动词形式would/could/might/should
have
done，条件从句的谓语动词形式had
done。故选D。
【总结】考查虚拟语气，本题涉及虚拟语气在条件状语从句中的应用以及与过去事实相反的假设。21教育名师原创作品
7.Without
electricity,
human
life??????
quite
difficult
today.
A.?would
be??
(?http:?/??/?www.21cnjy.com?)?????????????????????????
B.?will
be???????????????????????????
C.?would
have
been???????????????????????????D.?is2·1·c·n·j·y
【答案】
A
【解析】
句意：没有电，人类今天的生活将会
(?http:?/??/?www.21cnjy.com?)相当困难。虚拟语气中的“含蓄之美”指的是含蓄虚拟语气。因为有时假设的情况并不是以if引导的条件从句形式出现，而是通过一些短语等形式暗示虚拟语气的存在，常用的词语有with,
without,
but
for,
otherwise,
or，even,
in
case
of,
what
if(如果…将如何)等等，这种句子往往有主句而无从句。由“today”可知，表示的是与现在事实相反的假设，所以主语从句谓语形式为would
be。故选A。
【总结】考查虚拟语气，本题涉及含蓄虚拟语气的应用。
8.You
________
that
late
last
night
.You
have
three
days
to
finish
the
work.
A.?didn't
need
to
work???????B.?neendn't
have
worked???????
C.?need
to
work???????
D.?need
working
【答案】
B
【解析】
句意：昨天晚上你没有必要工作
(?http:?/??/?www.21cnjy.com?)到那么晚，你还有三天时间来完成这项工作。needn't
have
done固定短语，“本没有必要做某事，实际上却做了”，是对过去情况的虚拟，故选B。
【总结】考查虚拟语气，掌握needn't
have
done的应用。
9.My
brother
________
to
college
last
year,
but
unfortunately
he
wasn't
able
to
take
the
examination
because
he
was
seriously
ill.
A.?needn't
have
gone??????B.?shouldn't
have
gone??????21cnjy.com
C.?could
have
gone??????
D.?must
have
gone
【答案】
C
【解析】
句意：我的哥哥去年
(?http:?/??/?www.21cnjy.com?)本可以进大学，但不幸地是因为生了重病，没有能够参加考试。A.
needn't
have
gone“本不需要做某事，实际上却做了”；B.
shouldn't
have
gone“本不应该做某事，实际上却做了”；C.
could
have
gone“本可以做某事，实际上却没有做”；D.
must
have
gone“一定做了某事”。根据句意可知表示“本可以做某事，实际上却没有做”，这是对过去情况的虚拟，故选C。
【总结】考查虚拟语气，区分needn't
have
done；
shouldn't
have
done；could
have
done和must
have
done的含义和应用。
10.It
seems
strange
(?http:?/??/?www.21cnjy.com?)
that
the
old
man
_____
have
returned
to
college
to
finish
the
degree
he
left
undone
four
decades
ago.
A.?would????????????????????????????????B.?should????????????????????????????????
C.?could????????????????????????????????D.?might
【答案】
B
【解析】
句意：这位老人回到大学
(?http:?/??/?www.21cnjy.com?)去完成他四十年前没有完成的学位，这似乎很奇怪。在It
is
strange
that...句式中，其中由that引导的主语从句可以陈述语气，也可以用虚拟语气，其区别是：用虚拟语气（should+动词原形）主要强调惊讶之意，其感彩比较浓；若不特别强调感彩，则用陈述语气，故选B。
【总结】考查虚拟语气，本题涉及固定句式It
is
strange
that.....。
11.—Thank
you
for
yo
(?http:?/??/?www.21cnjy.com?)ur
assistance,
without
___I
might
have
been
in
danger.
21
cnjy
com
—That's
all
right,
anyone
in
my
place
________
the
same
thing.
A.?that;
will
do?????????
B.?it,
would?????????
C.?which;
can
have
done?????????D.?which;
would
have
done
【答案】
D
【解析】
句意：——谢谢你的帮
(?http:?/??/?www.21cnjy.com?)助，没有你的帮助我可能会有危险。——没关系，无论是谁处在我这样的位置，都会这么做的。without
___I
might
have
been
in
danger.是一个非限制性定语从句，先行词是your
assistance，介词+关系代词引导的定语从句，指物，只能用which；与过去事实相反的假设，其句子结构为：从句：If+主语+过去完成时+其他，主句：主语+should(would,
could,
might)+现在完成时+其他，故选D。
【总结】考查定语从句和虚拟语气，本题涉及非限制性定语从句和“情态动词+have
done”。
12.I
wish
that
I
______
a
bird.
A.?am??????????????????????????????????????B.?was??????????????????????????????????????
C.?be??????????????????????????????????????D.?were21教育网
【答案】
D
【解析】
句意：我希望
(?http:?/??/?www.21cnjy.com?)我是一只鸟。根据语意可知，本句是虚拟语气，与现在事实相反的虚拟语气，wish从句要用一般过去时，be动词要用were。故选D。
【总结】考查虚拟语气，掌握wish的应用。
13.But
for
my
t
(?http:?/??/?www.21cnjy.com?)eacher's
help
when
I
was
in
the
senior
high
school,
I
____
in
Fudan
University
now.
A.?would
not
have
studied???????????????????????????????????B.?would
not
be
studying
C.?hadn't
studied??????????????????????????????????????????????????D.?was
not
studying
【答案】
B
【解析】
句意：在高中时要不是我老师的
(?http:?/??/?www.21cnjy.com?)帮助，我现在就不可能在复旦大学读书。本题中的从句是一个含蓄条件句，but
for相当于if
there
hadn't?
been
for；主句与现在是相反，且由时间状语now可知，是对现在正在发生的情况的一种假设，所以谓语动词用would
（not）+be+doing
的形式．故选B。
【总结】考查虚拟语气，以及固定短语but
for。
14.Fortunately
I
(?http:?/??/?www.21cnjy.com?)
_______
a
seat
belt,
otherwise
I
would
have
been
injured.
A.?am
wearing????????????????
B.?was
wearing????????????????
C.?have
been
wearing????????????????D.?have
worn
【答案】
B
【解析】
句意：幸运的是我系了安
(?http:?/??/?www.21cnjy.com?)全带，否则我就受伤了。本题中
otherwise
表示“否则”，相当于一个虚拟条件句，其后相当于相应的主句。其中动词用了
would
have
done
的形式说明是与过去事实相反；所以前半句讲述的是过去的事实，用过去时态，再根据句意，我当时“正系着安全带”，要用进行时，综上，故选B。
【总结】考查虚拟语气，本题涉及与过去事实相反。
15.________
the
morni
(?http:?/??/?www.21cnjy.com?)ng
train,
he
would
not
have
been
late
for
the
meeting.
A.?Did
he
catch?????????????
B.?Should
he
catch?????????????21·cn·jy·com
C.?Has
he
caught?????????????D.?Had
he
caught
【答案】
D
【解析】
句意：如果他赶上了早班火
(?http:?/??/?www.21cnjy.com?)车，开会就不会迟到了。主句的谓语动词是would
not
have
been
，说明与过去事实相反，从句则可以用if
he
had
caught
the
morning
train,
当if从句中有were、had或者should
时，在可以省略if，把were、had或者should放在句首构成倒装句形式。本句中含有had，所以不用if时，就变成了
Had
he
caught
the
morning
train。故选D。
【总结】考查虚拟语气以及倒装句，本题涉及与过去事实相反。
16.It
might
have
saved
me
some
trouble
______
the
schedule.
A.?did
I
know????????????????????B.?have
I
known????????????????????
C.?do
I
know????????????????????D.?had
I
known
【答案】
D
【解析】
句意：如果我早知道日程安排
(?http:?/??/?www.21cnjy.com?)，可能会省去我一些麻烦。根据题干中might
have
saved可知主句是对过去的虚拟，从句应用if
I
had
known与主句保持一致。if虚拟条件句中含有had时，可将if省去，同时将had提前构成倒装结构。故答案选D项。虚拟语气重要做题原则：根据题干中主句或从句中动词形式判断所考查的动词的虚拟时间,
一般要保持一致，但要注意错综时间虚拟语气要根据各自所表示的虚拟时间做出调整。另外，当
if
条件句中含有助动词
had，should
或
were
时,
可以省略
if，而将
had,
should
或
were提到句首，从而构成倒装虚拟条件句。选D。
【总结】考查虚拟语气的倒装，本题涉及与过去事实相反的虚拟语气。
17.It
is
compulsory
that
every
motorcyclist
______
a
helmet.
A.?shall
wear??????????????????????B.?should
wear??????????????????????
C.?must
wear??????????????????????D.?need
wear
【答案】
B
【解析】
句意：骑摩托车
(?http:?/??/?www.21cnjy.com?)的人都必须戴头盔。虚拟语气用在It
is
+形容词+that的主语从句中，在某些表示愿望、建议、请求、命令等形容词后的主语从句中，需用should
+
动词原形，should可以被省略的虚拟语气。这类形容词有advisable，appropriate，compulsory等，故选B。
【总结】考查虚拟语气，本题涉及虚拟语气在主语从句中的应用。
18.I'm
sorry
(?http:?/??/?www.21cnjy.com?)
to
say
I
failed
to
meet
the
deadline.
With
better
equipment,
I
__________
the
task
on
schedule.
A.?might
have
accomplished???????????????????????????????B.?would
accomplish
C.?must
have
accomplished?????????????????????????????????D.?could
accomplish
【答案】
A
【解析】
句意：很遗憾我没有按时完成工作。
(?http:?/??/?www.21cnjy.com?)如果有更好的设备的话，我或许可以如期完成任务的。这是一个含蓄条件句，表示与过去的事实相反的假设，主句用should/could/would/might+have
done，故选A。
【总结】考查虚拟语气，本题涉及虚拟语气在含蓄条件句中的应用，以及与过去的事实相反的假设。
【出处：21教育名师】
19.Emphasis
(?http:?/??/?www.21cnjy.com?)is
laid
on
the
necessity
that
all
the
goals
to
be
attained
_________
into
account
before
starting
a
new
project..
A.?be
taken??????????????????
B.?should
take??????????????????
C.?would
be
taken??????????????????D.?must
be
taken21
cnjy
com
【答案】
A
【解析】
句意：我们强调这
(?http:?/??/?www.21cnjy.com?)样做的必要性，即在一项新计划启动之前要考虑到它要达成的所有目标。本题中that后的从句为necessity“必要”的同位语从句，谓语需要用(should)＋动词原形，should可以被省略的虚拟语气，句中“目标”和“考虑”是被动关系，故选A。
【总结】考查虚拟语气，本题涉及虚拟语气在同位语从句中的应用。
20.The
teacher
commanded
that
the
classroom
should
_____at
once
A.?clean??????????????????????????
B.?cleaned??????????????????????????
C.?be
cleaned??????????????????????????D.?be
cleaning
【答案】
C
【解析】
句意：老师要求
(?http:?/??/?www.21cnjy.com?)教室立即被打扫干净。that
the
classroom
should
_____at
once是一个宾语从句，command之后的宾语从句，用should
+
动词原形，should可以被省略的虚拟语气，“教室”和“打扫”之间是被动关系，用被动语态，故选C。
【总结】考查虚拟语气，本题涉及虚拟语气在宾语从句中的应用。
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